From d3ddf050a5f1cbcd1510695eeee688472911d6a2 Mon Sep 17 00:00:00 2001
From: Yi Wang <yiwang01@baidu.com>
Date: Sun, 30 Jul 2017 16:07:01 -0700
Subject: [PATCH] Correct specialization of throw_on_error for pointer types

---
 paddle/platform/enforce.h | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/paddle/platform/enforce.h b/paddle/platform/enforce.h
index ab474508d98..89a948e495e 100644
--- a/paddle/platform/enforce.h
+++ b/paddle/platform/enforce.h
@@ -127,9 +127,15 @@ inline typename std::enable_if<sizeof...(Args) != 0, void>::type throw_on_error(
 
 #endif  // PADDLE_ONLY_CPU
 
-template <typename T>
-inline void throw_on_error(T* e) {
-  throw_on_error(e != nullptr, "");
+template <typename T, typename... Args>
+inline typename std::enable_if<std::is_pointer<T>::value, void>::type
+throw_on_error(T stat, const Args&... args) {
+  if (stat == nullptr) {
+    return;
+  } else {
+    throw std::runtime_error("Pointer value is nullptr: " +
+                             string::Sprintf(args...));
+  }
 }
 
 template <typename T>
-- 
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